Re: [RE-wrenches] Protecting/Cleaning un-connected MC Connectors

2012-11-26 Thread Garrison Riegel
Multi-Contact makes MC4 "sealing caps" but I have not been able to find them for sale in the US. Maybe you will have better luck. Plastic and electrical tape has had to suffice for us until a better solution is more available. If you found a good plug I suppose you could also just use spare male

Re: [RE-wrenches] Protecting/Cleaning un-connected MC Connectors

2012-11-26 Thread dan
We make flexible cable assemblies for a local track rack manufacturer. seems last winter gremlins convinced "us" to muff up a large order (transposed MC4 connectors). We repaired things by pruning off the wrong polarity connectors. so, we now have we have boxes of made up MC4 connectors looking for

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Nick Soleil
Hi wrenches; SolaDeck Models 0760-41AD and 0766-41AD are rated for up to 60A at 240Vac. It can be ordered with DIN rail mounted AC breakers and a combiner kit. The 2 - 20A circuit combiner kit is part 0760K2AC. I'd recommend checking with a distributor or on SolaDeck's website for the most curre

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Gary Willett
NICK: I could not find the AC model numbers you provided on the SolaDeck web site. Do you know the manufacturer, and the voltage and temperature ratings, for the 2-pole 20A AC breakers?

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Jason Szumlanski
I just called Soladeck and they are sending me some more info on availability. I'll pass it along when I get it. I didn't realize they made an AC roof mounted string combiner solution. That's a huge help for 2 or 3 string Enphase installations (they make both combiners). While on the subject, we r

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Jason Szumlanski
I did get some pictures and info from Soladeck. Here are some links: Pics: https://docs.google.com/open?id=1BpiL-1SdSNNsj4wPMQrFCLHH7JT2dek_KftSJl06QLqc0yhJ_1t5oij0aEA6 https://docs.google.com/open?id=1cVuhZGeQNHL1IvGvNBa7v93oZyGBvjxCv5yq4AmoyJeDAITxvgMqgECR2yTv https://docs.google.com/open?id=1um

[RE-wrenches] Enphase voltage out of range errors

2012-11-26 Thread William Miller
Friends: We have one site that is experiencing ongoing problems with errors indicating, "AC Voltage Out Of Range." This has occurred on two of 17 M190 inverters. Apparently the voltage is not really out of range, the inverter is erroneously reporting. I have one replacement in hand and was

Re: [RE-wrenches] Enphase voltage out of range errors

2012-11-26 Thread Alan Ross
On one installation, I had the same error cod issue. The project also used the M190 inverters. The issue ended up being a loose connection between one of the inverter-to-inverter connections. After re-checking all of the connections, and making sure the connection was tight, the error code did n

Re: [RE-wrenches] Enphase voltage out of range errors

2012-11-26 Thread penobscotsolar
Hi William, We have experienced this at one installation using 22 M-215's. There is not yet a conclusion, but here are some things worth looking out for.I printed out a spreadsheet of the incidents and noticed over a one month period that they were all happening at either 8:30 am or 1 pm, gi

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Gary Willett
JASON: I talked to Steve Capozzi of SolaDeck and he sent me additional info about the circuit breakers: _Manufacturer_: ABB _Terminal Temp Rating_: 75C / 167F _Reference Temperature_: 20C / 68F _Ambient Temp Derating_: 30C/86F = 18.7A 40C/104F = 17.3A 50C

Re: [RE-wrenches] Protecting/cleaning un-connected MC connectors

2012-11-26 Thread Tom DeBates
Wrenches,   We keep a supply of MC4 caps on-hand for this purpose. Purchased from Kensington Electronics (keiconn.com). You may try pv-cables.com, too.    MC Type and Order Number respectively: PV-BVK4  /  32.0716    (f) PV-SVK4 /  32-0717    (m) Tom DeBates Habi-Tek 524 Summit St. Geneva,IL.

[RE-wrenches] Unisolar Intermittent Ground Fault

2012-11-26 Thread Robert Nuese
Dear Wrenches I've been experiencing a troubleshooting problem that you may be able to help me with. Or, can anyone refer me to someone, maybe an electrical engineer?, who I could hire to help. About 7 years ago I installed Unisolar modules on all the roofs of a complex of 12 mixed use buildings

Re: [RE-wrenches] Best practices for conduit penetration on roof

2012-11-26 Thread Andrew Truitt
Not to be too nit-picky, but I think its a good idea to distinguish between branch circuits (parallel connections) and strings (series connections). Enphase inverters are wired in parallel while string or central inverters require modules to be wired in series (with parallel strings as an option).

Re: [RE-wrenches] Unisolar Intermittent Ground Fault

2012-11-26 Thread Chris Mason
Have you tried a megger? The 1,000v setting should display any breakdown areas. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenche

Re: [RE-wrenches] Unisolar Intermittent Ground Fault

2012-11-26 Thread Kelly Larson
If you're in Sebastopol you could ask Paul Hernday at Solmetric if the PVA would help. Blessings, Kelly On Nov 26, 2012, at 4:55 PM, Robert Nuese wrote: > Dear Wrenches > > I've been experiencing a troubleshooting problem that you may be able to > help me with. Or, can anyone refer me to som

[RE-wrenches] PVSYST or similar analysis needed

2012-11-26 Thread Carl Adams
Hello Wrenches, I am in need of an analysis for a large battery backup system. I am looking for a sweet spot in PV array size and battery bank size. I need this modeled on a time of day basis, and evaluated monthly thru a full calendar year. I am told that PVSYST can perform such an analysis bu